He's just a carpenter's son, and we know Mary, his mother, and his brothers--James, Joseph, Simon, and Judas. - Matthew 13:55

Then Judas Iscariot, one of the twelve disciples, went to the leading priests - Matthew 26:14

From that time on, Judas began looking for the right time and place to betray Jesus. - Matthew 26:16

Judas, the one who would betray him, also asked, "Teacher, I'm not the one, am I?" And Jesus told him, "You have said it yourself." - Matthew 26:25

And even as he said this, Judas, one of the twelve disciples, arrived with a mob that was armed with swords and clubs. They had been sent out by the leading priests and other leaders of the people. - Matthew 26:47

Judas had given them a prearranged signal: "You will know which one to arrest when I go over and give him the kiss of greeting." - Matthew 26:48

So Judas came straight to Jesus. "Greetings, Teacher!" he exclaimed and gave him the kiss. - Matthew 26:49

When Judas, who had betrayed him, realized that Jesus had been condemned to die, he was filled with remorse. So he took the thirty pieces of silver back to the leading priests and other leaders. - Matthew 27:3

Then Judas threw the money onto the floor of the Temple and went out and hanged himself. - Matthew 27:5

Judas Iscariot (who later betrayed him). - Mark 3:19

He's just the carpenter, the son of Mary and brother of James, Joseph,* Judas, and Simon. And his sisters live right here among us." They were deeply offended and refused to believe in him.1 - Mark 6:3

Then Judas Iscariot, one of the twelve disciples, went to the leading priests to arrange to betray Jesus to them. - Mark 14:10

And immediately, as he said this, Judas, one of the twelve disciples, arrived with a mob that was armed with swords and clubs. They had been sent out by the leading priests, the teachers of religious law, and the other leaders. - Mark 14:43